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mel-nik [20]
2 years ago
11

3(x^2-1) + 4(x^2 - 3) = 13 solve for x

Mathematics
2 answers:
Mrrafil [7]2 years ago
4 0

Answer:

x=2, x=-2

Step-by-step explanation:

3x²-3+4x²-12=13

7x²=13+12+3

7x²=28

x²=4

x=-2

x=2

mart [117]2 years ago
3 0
X =-2 should bring the correct answer
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